CN205086902U - Electric parking brake apparatus - Google Patents
Electric parking brake apparatus Download PDFInfo
- Publication number
- CN205086902U CN205086902U CN201520859301.XU CN201520859301U CN205086902U CN 205086902 U CN205086902 U CN 205086902U CN 201520859301 U CN201520859301 U CN 201520859301U CN 205086902 U CN205086902 U CN 205086902U
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- Prior art keywords
- brake
- braking force
- nut
- brake device
- cheek
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
- F16D65/22—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for pressing members apart, e.g. for drum brakes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
- B60T13/746—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive and mechanical transmission of the braking action
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/08—Brake-action initiating means for personal initiation hand actuated
- B60T7/10—Disposition of hand control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D51/00—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like
- F16D51/16—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis
- F16D51/18—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes
- F16D51/26—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes both extending in the same direction from their pivots
- F16D51/28—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes both extending in the same direction from their pivots mechanically actuated
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
- F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/18—Electric or magnetic
- F16D2121/24—Electric or magnetic using motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
- F16D2125/34—Mechanical mechanisms converting rotation to linear movement or vice versa acting in the direction of the axis of rotation
- F16D2125/40—Screw-and-nut
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/58—Mechanical mechanisms transmitting linear movement
- F16D2125/60—Cables or chains, e.g. Bowden cables
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Braking Arrangements (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The utility model discloses an electric parking brake apparatus. Electric parking brake apparatus includes: power produces the unit, according to external signal generation of power, system power transmission unit, it combines through screw thread connection power production unit, through power linear motion, and the transmission by the brake force that linear motion produced, the unit is replenished to brake force, and it sets up to centering on in the time of system power transmission unit, close on power produces the unit, for the reduction that prevents brake force, apply the brake this somatic part, its connection system power transmission unit to move the vehicle through using brake force to stay.
Description
Correlation technique cross reference
This application claims preceence and the rights and interests of the korean patent application of the application No.10-2014-0152203 that on November 4th, 2014 submits to, the full content of this application is incorporated into this with the form quoted.
Technical field
The utility model relates to a kind of electronic brake device.
Background technology
Usually, holding brake device is used to the movement of the vehicle preventing parking.
Holding brake device is divided into by the manually operated manual parking brake equipment of user, with by motor operated electronic brake device, wherein, electronic brake (ElectronicParkingBrake, EPB), while the rotary motion of motor is converted to straight-line motion by device, wheel is braked.
That is, in the example of electronic brake device, when user operates motor by control button, switch or bar, due to the rotation of motor, gear unit and nut rotation, the stud running through nut moves in their length direction, and the parking cable be connected on stud is pulled, make drag friction component and the mutual close contact of brake wheel, with this by the braking during standstill dynamic braking vehicle when drag friction component and the mutual close contact generation of brake wheel.
In existing technology, in order to parking, after user first operates a main brake, then handle holding brake device and carry out parking.User at main brake by after the state lower-pilot holding brake device that operates, when discharging main brake, the braking during standstill power of holding brake device will be part of the loss, during making brake operating, braking force reduces, or the contraction that caused by temperature traverse due to drag friction component of the friction force between drag friction component and wheel braking drum and reducing.The minimizing of braking during standstill power can cause the instability of vehicle parked state, and causes in the unexpected movement of motor vehicle, even can cause safety misadventure thus.Therefore, a kind of device preventing braking during standstill power from losing that can be suitable is needed.
Utility model content
(problem that will solve)
The utility model is devoted to provide a kind of to prevent the braking during standstill power caused due to many reasons from reducing by actv., can remain the electronic brake device of stable parked state.
The electronic brake device of the utility model exemplary embodiment comprises: force generation unit, produces power according to outward sign; Braking force transmission unit, it is threaded connection mode and is attached to force generation unit, by described power straight-line motion, and transmits the braking force produced by described straight-line motion; Braking force supplementary units, it is set to, around while described braking force transmission unit, close on described force generation unit; And brake portion, it connects described braking force transmission unit, and by using braking force to stay motor vehicle.
Force generation unit can comprise: motor, produces power according to outward sign; Gear unit, is operated by the operation of motor; And nut, it connects gear unit, and is rotated by the operation of gear unit.
Braking force transmission unit can comprise: stud, and it is threaded connection mode and is attached to described nut, while running through described nut, carries out straight-line motion in their length direction; And cable, it has one end of connecting stud, and is connected to the other end in described brake portion.
Braking force supplementary units can comprise: pipe, and it is arranged in the direction towards described nut, and has hollow circle configuration to hold stud; And elastic component, its contiguous nut, and around the outside face of pipe.
Elastic component is coil spring or disc spring.
Nut on the length direction of pipe while movement, extrudes elastic component at the straight-line motion by stud.
Described pipe is from described nut interval 3mm or more.
Brake portion comprises: control lever, and it connects described cable, and depends on braking force and operated; Brake shoe brake cheek, it has the interior section being attached to described bar, and has the both sides expanded by the control lever operated by depending on braking force; Anchor block, it connects described control lever, and supports the both sides of described brake shoe brake cheek; And brake wheel, it is inner holds brake shoe brake cheek, and by using when the expansion by described brake shoe brake cheek, and the exterior section of described brake shoe brake cheek directly contacts the inwall of described brake wheel and the friction force that produces stays motor vehicle.
Due to the reduction of braking force, when forming prepsetting gap between anchor block and brake shoe brake cheek, elastic component by using elastic restoring force travelling nut, can eliminate prepsetting gap.
By the electronic brake device of the utility model exemplary embodiment, friction force between brake wheel and drag friction component reduces during brake operating, or cause the contraction of drag friction component due to the change of temperature, so that when braking during standstill power is partly lost, control lever is further pulled by the elastic restoring force of spring, to make drag friction component close contact brake wheel, positively prevent the braking force of braking during standstill from partly losing with this.
Therefore, there is provided the electronic brake device of the braking during standstill power of improvement to vehicle by application, vehicle can be made to keep continuous print and stable parked state, prevent staying dynamic vehicle, due to the partial loss of braking during standstill power, unexpected movement occurs, and prevent the safety misadventure that causes due to the partial loss of braking during standstill power, therefore improve the marketability (marketability) of vehicle.
Aforesaid summary as just example, and does not carry out any restriction to the utility model.Except aspect, embodiment and feature that above-mentioned description illustrates, further aspect, embodiment and the feature that can obtain by reference to accompanying drawing and following detailed description of the invention also will be apparent.
Accompanying drawing explanation
Fig. 1 is the cutaway view of the electronic brake device according to the utility model embodiment.
Fig. 2 is the cutaway view of the electronic brake device dead ship condition according to the utility model embodiment.
Fig. 3 is the front elevation in the electronic brake device brake portion according to the utility model embodiment.
Fig. 4 to Fig. 6 is the key drawing for illustration of the method preventing braking during standstill power from reducing due to many reasons according to the electronic brake device of the utility model embodiment.
But should be understood that appended accompanying drawing need not be drawn in proportion, and what present is the explanation slightly simplified of all multiple features representing groundwork of the present utility model.Specific design feature of the present utility model as disclosed herein, comprises, and such as, concrete size, direction, position and shape will partly be determined by specific expection application and environment for use.
In the accompanying drawings, the Reference numeral in multiple accompanying drawing refers to parts identical or equivalent in the utility model.
Specific implementation method
Target can be obtained to understand the utility model fully, beneficial effect is obtained by using the utility model, and achievement of the present utility model, need to carry out reference explanation by the content disclosed in the accompanying drawing of the utility model exemplary embodiment and accompanying drawing.
Hereinafter, the utility model exemplary embodiment will be described in detail with reference to the accompanying drawings.But the utility model can be modified by multiple different mode, should not limited by following exemplary embodiment.Further, in order to part disclosed in description the utility model clearly, omit for irrelevant part, be directed to identical composed component simultaneously and the identical Reference numeral of use is specified.
Except having clearly contrary description, word " comprises " and its variant such as " comprises " or " containing " will be understood to include described element, but does not get rid of containing other elements.
According to Fig. 1, the electronic brake device of an exemplary embodiment of the present utility model comprises housing 100, force generation unit 200, braking force transmission unit 300, braking force supplementary units 400 and brake portion 500.
Housing 100 can have the hollow space that has default size, and housing 100 can adopt synthetic resin or metallic material to make.Housing 100 can peventing member, such as, be installed on the force generation unit 200 in housing 100, braking force transmission unit 300 and braking force supplementary units 400, damaged or contaminated by the foreign matter flowed into from outside by external impact.
First spatial accommodation 110, can be formed in the middle part of housing 100, and its inside is provided with force generation unit 200, braking force transmission unit 300 and braking force supplementary units 400.
Second spatial accommodation 120, can be formed in the side (as left side in Fig. 1) of housing 100 to be communicated with the first spatial accommodation 110; It is inner, and then described braking force transmission unit 300 can locate by straight-line motion on the braking direction of braking during standstill.
3rd spatial accommodation 130, can be formed in the opposite side (as right side in Fig. 1) of housing 100, to be communicated with the first spatial accommodation 110; It is inner, and then described braking force transmission unit 300 can locate by straight-line motion.The large I of the 3rd spatial accommodation 130 is less than the first spatial accommodation 110.
Force generation unit 200 is the devices producing power based on outward sign, can comprise motor 210, gear unit 220 and nut 230.
Motor 210 can be installed in inner side or the outside of described housing 100.Such as, the outside of described housing 100 is installed according to the motor 210 of illustrative examples of the present invention.
Motor 210 is controlled by Vehicle Electronic Control Unit (ElectronicControlUnit, ECU).The electric energy applied from outside under the control of electronic control unit, can be converted to rotation energy by motor 210.The rotation changed by motor 210 can be controlled by an electronic control unit, and is transferred to gear unit 220, thus arm revolving gear unit 220.
Gear unit 220 is operated by the power transmitted from motor 210, and can install in the first spatial accommodation 110 in a housing 100.
Gear unit 220 can comprise and is connected to worm gear on motor 210 and helical wheel, and together rotates when motor 210 rotates.
Worm gear is connected on the S. A. of motor 210, and has the multiple teeth be formed on its external peripheral surface.
Helical wheel has the outside being formed as combining in the vertical direction of the tooth about worm gear with the tooth on worm gear, and the one end be connected with nut 230 can be had.Helical wheel be attached to nut 230 with nut 230 unitary rotation, and helical wheel and nut 230 together can rotate with the rotation of worm gear.Screw thread, it is connected to braking force transmission unit 300 by thread connecting mode, can be formed on helical wheel inner circumferential surface.
The first spatial accommodation 110 that nut 230 can be installed in housing 100 is inner.
Nut 230 can have the screw thread of circumferential surface within it, so that braking force transmission unit 300 runs through nut 230 and is attached to nut 230 with thread connecting mode.
When braking force transmission unit 300 be moved enter the second spatial accommodation 120 inner and lock braking during standstill time, move in the direction that nut 230 is contrary with the sense of motion of braking force transmission unit 300 in the same way with gear unit 220 1.That is, nut 230 direction motion to the right (as direction to the right in Fig. 1), extrudes braking force supplementary units 400 simultaneously.
When reducing during brake operating along with braking force or reducing due to the contraction braking force of friction member, when braking force supplementary units 400 is released, nut 230 is back to initial position by the elastic restoring force of braking force supplementary units 400, stop the minimizing of braking force during brake operating thus, or stop braking force to reduce due to the contraction of friction member.
Braking force transmission unit 300 is the power conversion for being produced by force generation unit 200 is the device of braking force, and the braking force of conversion is transferred to brake portion 500, and can comprise stud 310 and cable 320.
The side (left side as Fig. 1) of stud 310 can be placed in the first spatial accommodation 110 inside of housing 100, and the 3rd spatial accommodation 130 that the opposite side of stud 310 (right side as Fig. 1) can be placed in housing 100 is inner.
Stud 310 has the screw thread be formed on its external peripheral surface, to be attached to nut 230 with thread connecting mode, and while running through nut 230, can on its (stud) length direction linear reciprocating motion.
The opposite side (right side as Fig. 1) that stud 310 is connected to cable 320 has rotation inhibiting member 311.External peripheral surface and the 3rd spatial accommodation 130 of rotation inhibiting member 311 are attached closely, and can be formed as polygonal shape, are rotated to prevent stud 310.
Stud 310 is prevented from being rotated by rotation inhibiting member 311, therefore carries out reciprocal straight-line motion by the rotation of nut 230.
One end of cable 320 can connecting stud 310, and the other end of cable 320 can connect brake portion 500.When stud 310 straight-line motion, cable 320 together moves, and therefore braking force is supplied to brake portion 500.
Braking force supplementary units 400 is mounted to stop the minimizing of braking force during braking and locking operation, and stops braking force to reduce due to the contraction of friction member, and can comprise elastic component 410 and pipe 420.
The first spatial accommodation 110 that elastic component 410 can be installed in housing 100 is inner, and elastic component 410 can be coil spring.When being described as a coil spring according to the elastic component 410 of the utility model exemplary embodiment, the utility model is not be only limitted to this, the spring of other types, and such as disc spring also can be used as elastic component 410.
The side of elastic component 410 can be arranged at contiguous nut 230.Elastic component 410 can be compressed by nut 230, and by using the elastic restoring force of elastic component 410 to make nut 230 be back to initial position.
Circle tube member 420 is integrally formed in described housing 100, and can the stud 310 of accommodating described braking force transmission unit 300 wherein.
Described circle tube member 420 has a spatial accommodation, and this spatial accommodation extends from the 3rd spatial accommodation 130 of housing 100.Circle tube member 420 can be formed and described nut 230 D spaced a predetermined distance, such as 3mm or more.
Brake portion 500 is the devices be attached on wheel of vehicle, by using the braking force that braking force transmission unit 300 transmits to produce friction force, and by using the friction force produced to carry out abrupt deceleration vehicle.
When friction force reduces during braking and locking operation, or when the friction member that causes due to temperature traverse of friction force shrinks and reduces, brake portion 500 can not fully abrupt deceleration vehicle.But the braking force supplementary units 400 according to the utility model exemplary embodiment can supplement braking force, thus by stoping friction force to reduce and fully abrupt deceleration vehicle.
Be illustrated in figure 2 the electronic brake plant running process of the utility model exemplary embodiment.
When user operates electronic parking device by objects similar with it such as control button, switch, bars, electronic control unit (ECU) operational power generation unit 200.
The rotational force that gear unit 220 is produced by the motor 210 of force generation unit 200 and rotating.The rotational force of motor 210 transfers to the worm gear in gear unit 220, and worm gear can make helical wheel rotate.
Due to the rotation of helical wheel, nut 230 is also rotated, and due to the rotation of nut 230, the stud 310 of braking force transmission unit 300 can move and locate in the second spatial accommodation 120 of housing 100.In this case, stud 310 prevents it from rotating by rotation inhibiting member 311, and on its (stud) length direction straight-line motion.
Gear unit 220 and nut 230 can be moved up in the side of braking force supplementary units 400 by the stud 310 moving to the second spatial accommodation 120.Therefore, gear unit 220 and nut 230 move simultaneously, and extrude the elastic component 410 of braking force supplementary units 400.
Wherein, when braking force reduces in braking and locking operation, or the contraction of friction means that causes due to temperature traverse of braking force and when reducing, while being stretched by elastic restoring force wherein by the elastic component 410 compressed, be back to initial condition, as a result, gear unit 220 and nut 230 are also back to initial position, and the stud 310 be connected with nut 230 with gear unit 220 and cable 320 also together move with gear unit 220 and nut 230.Therefore, be provided additional brake power brake portion 500 can abrupt deceleration vehicle to place vehicle in the state that stopping completely.
Be illustrated in figure 3 the brake portion 500 of the utility model exemplary embodiment.
Brake portion 500 can comprise control lever 510, brake shoe brake cheek 520, anchor block 530 and brake wheel 540.
Control lever 510 can connect the cable 320 of braking force transmission unit 300.When cable 320 on the direction of the second spatial accommodation 120 of housing 100 when pulled, control lever 510 and cable 320 are by a biconditional operation.
A pair brake shoe brake cheek 520 is attached to the both sides of control lever 510.When being operated by control lever 510 left direction of a biconditional operation and right direction (in as Fig. 3 left direction and right direction) with cable 320, a pair brake shoe brake cheek 520 radial outward dilations, and brake wheel 540 optionally close contact a pair brake shoe brake cheek 520, produce braking during standstill power thus.
Anchor block 530 is connected to control lever 510 and fixes, with the interval adjusted between brake shoe brake cheek 520 both sides or the both sides supporting brake shoe brake cheek 520.
Brake wheel 540 is attached on the wheel of vehicle, so as with the wheel unitary rotation of vehicle, and wherein hold brake shoe brake cheek 520 and anchor block 530.Along with the expansion of brake shoe brake cheek 520, the inwall of brake wheel 540 directly contacts the exterior section of described brake shoe brake cheek 520.Thus by using the frictional force brakes wheel produced when brake wheel 540 directly contacts with brake shoe brake cheek 520.
Composition graphs 4-6, according to the utility model exemplary embodiment, prevents the method having occurred in braking force of the prior art minimizing due to many reasons to be described by electronic brake device.When the electronic brake device of vehicle is locked, the both sides of the control lever 510 of connection cable 320 carry out expanding to promote brake shoe brake cheek 520 in left direction or right direction, to make brake shoe brake cheek 520 radial outward dilations.
When brake shoe brake cheek 520 both sides expansion and when directly contacting with the inwall of brake wheel 540, default interval g1 and g2 is formed between anchor block 530 and brake shoe brake cheek 520, herein, interval g1 and g2 has almost identical size on the twocouese of anchor block 530, and in such cases, interval g1 and g2 shows that electronic brake device is by normal running.
As shown in Figure 5, when user discharges the operation of main brake, or after main brake is locked by electronic brake device under the state that operates, when the friction member of brake shoe brake cheek 520 shrinks due to temperature traverse, in interval g1 and g2 that anchor block 530 both sides are formed interval g2 may stenosis be narrow disappears even completely, and another interval g1 can relatively broaden to the degree narrowed of an interval g2.
This situation shows, the right side (right side of Fig. 5) of brake shoe brake cheek 520 does not have close contact brake wheel 540, so that friction brake force reduces, and braking force reduces during brake operating or braking force reduces due to the contraction of friction member.
As shown in Figure 5, after electronic brake device is locked, when the interval of anchor block 530 side disappears, as shown in Figure 6, a default interval g3 is formed between control lever 510 and cable 320.
When previously mentioned elastic component 410 pulls cable 320 by elastic restoring force, interval g3 between control lever 510 and cable 320 disappears, and control lever 510 radially outward promotes brake shoe brake cheek 520, together operate cable 320 simultaneously, be back to and brake wheel 540 close contact with the brake shoe brake cheek 520 made and brake wheel 540 interval is placed.
Therefore, electronic brake device can increase the friction brake force reduced, thus stably abrupt deceleration vehicle.
In sum, exemplary embodiment has carried out concrete description, and is illustrated by drawing and description.The selection of exemplary embodiment and description are to explain some principle of the present utility model and practical application, with this, other those skilled in the art are realized and utilize exemplary embodiment of the present utility model and its variations and modifications form.As explained above, some aspect of the present utility model not limit by the specific descriptions in example, and other amendment that it is expected to and applications, or equivalent will to be that those skilled in the art holds facile.By reference to explanation of the present utility model and accompanying drawing, various deformation of the present utility model, amendment, replacement and other purposes will be made to be apparent for those skilled in the art.All distortion, amendment, replacement and other purposes not leaving these spirit and scope of the present utility model will be regarded as and fall into protection domain of the present utility model.The scope that protection domain of the present utility model limits with claim is determined.
Claims (9)
1. an electronic brake device, is characterized in that, comprising:
Force generation unit, produces power according to outward sign;
Braking force transmission unit, it is threaded connection mode and is attached to described force generation unit, by described power straight-line motion, and transmits the braking force produced by described straight-line motion;
Braking force supplementary units, it is set to, around while described braking force transmission unit, close on described force generation unit; And
Brake portion, it connects described braking force transmission unit, and by using braking force stop vehicle.
2. electronic brake device according to claim 1, is characterized in that, wherein
Described force generation unit comprises:
Motor, produces power based on outward sign;
Gear unit, is operated by the operation of described motor; And
Nut, it connects described gear unit, and is rotated by the operation of described gear unit.
3. electronic brake device according to claim 2, is characterized in that, wherein
Described braking force transmission unit comprises:
Stud, it is threaded connection mode and is attached to described nut, while running through described nut, carries out straight-line motion in their length direction; And
Cable, it has one end of connecting stud, and is connected to the other end in described brake portion.
4. electronic brake device according to claim 3, is characterized in that, wherein
Described braking force supplementary units comprises:
Pipe, it is arranged in the direction towards described nut, and has hollow circle configuration to hold described stud; And
Elastic component, its contiguous described nut, and around the outside face of described pipe.
5. electronic brake device according to claim 4, is characterized in that, wherein
Described elastic component is coil spring or disc spring.
6. electronic brake device according to claim 4, is characterized in that, wherein
Nut on the length direction of pipe while movement, extrudes elastic component at the straight-line motion by stud.
7. electronic brake device according to claim 4, is characterized in that, wherein
Described pipe is from described nut interval 3mm or more.
8. electronic brake device according to claim 4, is characterized in that, wherein
Described brake portion comprises:
Control lever, it connects described cable, and depends on braking force and operated;
Brake shoe brake cheek, it has the interior section being attached to described bar, and has the both sides expanded by the control lever operated by depending on braking force;
Anchor block, it connects described control lever, and supports the both sides of described brake shoe brake cheek; And
Brake wheel, it is inner holds brake shoe brake cheek, and by using when the expansion by described brake shoe brake cheek, and the exterior section of described brake shoe brake cheek directly contacts the inwall of described brake wheel and the friction force stop vehicle that produces.
9. electronic brake device according to claim 8, is characterized in that, wherein
Due to the reduction of braking force, when forming prepsetting gap between anchor block and brake shoe brake cheek, elastic component, by using elastic restoring force travelling nut, eliminates prepsetting gap.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2014-0152203 | 2014-11-04 | ||
| KR1020140152203A KR102297129B1 (en) | 2014-11-04 | 2014-11-04 | Electronic parking brake apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205086902U true CN205086902U (en) | 2016-03-16 |
Family
ID=55477614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520859301.XU Active CN205086902U (en) | 2014-11-04 | 2015-10-30 | Electric parking brake apparatus |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9631687B2 (en) |
| JP (1) | JP6126647B2 (en) |
| KR (1) | KR102297129B1 (en) |
| CN (1) | CN205086902U (en) |
| DE (1) | DE102015215350A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111936761A (en) * | 2018-03-30 | 2020-11-13 | 日信工业株式会社 | Electric parking brake device |
| CN112744208A (en) * | 2019-10-29 | 2021-05-04 | 现代摩比斯株式会社 | Electronic brake device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9772029B2 (en) | 2015-07-09 | 2017-09-26 | Akebono Brake Industry Co., Ltd. | Planetary carrier with spring clutch |
| IT201800005001A1 (en) * | 2018-05-02 | 2019-11-02 | CABLE-PULL ACTUATION SYSTEM FOR PARKING BRAKE, PARKING BRAKE AND RELATIVE METHOD OF RELEASING A PARKING BRAKE |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE906050C (en) * | 1944-03-18 | 1954-03-08 | Perrot Bremse G M B H Deutsche | Two-jaw brake, especially for motor vehicles |
| JP3867005B2 (en) * | 2002-04-08 | 2007-01-10 | 日本ブレーキ工業株式会社 | Drum brake device |
| JP2007106327A (en) * | 2005-10-14 | 2007-04-26 | Toyota Motor Corp | Parking device for vehicle |
| DE102012018142A1 (en) * | 2012-09-14 | 2014-03-20 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | gear unit |
-
2014
- 2014-11-04 KR KR1020140152203A patent/KR102297129B1/en active IP Right Grant
-
2015
- 2015-06-19 JP JP2015123956A patent/JP6126647B2/en active Active
- 2015-06-25 US US14/750,955 patent/US9631687B2/en active Active
- 2015-08-12 DE DE102015215350.9A patent/DE102015215350A1/en active Pending
- 2015-10-30 CN CN201520859301.XU patent/CN205086902U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111936761A (en) * | 2018-03-30 | 2020-11-13 | 日信工业株式会社 | Electric parking brake device |
| CN111936761B (en) * | 2018-03-30 | 2022-04-19 | 日立安斯泰莫株式会社 | Electric parking brake device |
| US11794710B2 (en) | 2018-03-30 | 2023-10-24 | Hitachi Astemo, Ltd. | Electric parking brake device |
| CN112744208A (en) * | 2019-10-29 | 2021-05-04 | 现代摩比斯株式会社 | Electronic brake device |
Also Published As
| Publication number | Publication date |
|---|---|
| US20160123420A1 (en) | 2016-05-05 |
| JP6126647B2 (en) | 2017-05-10 |
| JP2016088496A (en) | 2016-05-23 |
| KR102297129B1 (en) | 2021-09-02 |
| DE102015215350A1 (en) | 2016-05-04 |
| KR20160052212A (en) | 2016-05-12 |
| US9631687B2 (en) | 2017-04-25 |
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